US4004545A - Boundary marker - Google Patents

Boundary marker Download PDF

Info

Publication number
US4004545A
US4004545A US05/654,161 US65416176A US4004545A US 4004545 A US4004545 A US 4004545A US 65416176 A US65416176 A US 65416176A US 4004545 A US4004545 A US 4004545A
Authority
US
United States
Prior art keywords
boundary marker
accordance
cylindrical pole
tube
cylindrical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US05/654,161
Other languages
English (en)
Inventor
John Francis O'Donnell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
G L P Co
Original Assignee
G L P Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by G L P Co filed Critical G L P Co
Priority to US05/654,161 priority Critical patent/US4004545A/en
Priority to CA247,649A priority patent/CA1036312A/en
Priority to DK116176A priority patent/DK116176A/da
Priority to DE19762611465 priority patent/DE2611465A1/de
Priority to NL7602863A priority patent/NL7602863A/xx
Priority to FR7608005A priority patent/FR2304722A1/fr
Priority to GB11480/76A priority patent/GB1549271A/en
Priority to IT7667675A priority patent/IT1057777B/it
Application granted granted Critical
Publication of US4004545A publication Critical patent/US4004545A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/623—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection
    • E01F9/627—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection self-righting after deflection or displacement
    • E01F9/629—Traffic guidance, warning or control posts, bollards, pillars or like upstanding bodies or structures

Definitions

  • This invention pertains generally to boundary markers, and more particularly to boundary markers or path delineators for vehicular traffic, requiring that the marker or delineator be capable of withstanding the forces experienced upon being struck by a moving vehicle and also be capable of withstanding the crushing forces experienced by a prone marker when being run over by a vehicle tire.
  • boundary markers and other signal devices could either be made of a flexible material or at least have a capability of being deflected.
  • An example of the flexible type marker is shown in U.S. Pat. No. 3,371,647, while examples of other deflectable markers or signal devices are shown in U.S. Pat. Nos. 3,485,201; 3,478,714; 3,279,133; 3,851,616; 1,939,968; 3,705,566 and 3,792,679 and Belgian Pat. No. 642,468 and French Pat. No. 1,482,473.
  • Boundary markers and signal devices of the foregoing type have not proved, however, to be completely successful in satisfying at least some needs, due to, among other reasons, failure to provide satisfactory visible indications both during the day and at night, breakage despite their ability to be deflected, being adversely affected by weather and other environmental conditions and/or difficulty in maintenance.
  • the device of the present invention constitutes a vastly improved boundary marker, providing superior performance and longer life even when subjected to the rigors of modern high-speed vehicular traffic. More specifically, the present invention provides a boundary marker capable of being struck repeatedly by vehicles moving at the highest legal speeds, as well as being rolled over by the tires of trucks of the heaviest legal limits, all without significant deterioration of the appearance or actual mechanical integrity of the device. Further, this invention provides a boundary marker which may be utilized in all weather conditions and which affords superior visibility over extended periods of time.
  • a further object is to provide a boundary marker or the like which is adapted to be deflected from a normal upright position to a horizontal position upon being struck by a vehicle, to be run over by the vehicle tires and to return to the normal upright position as the vehicle moves on, all without mechanical damage to the marker.
  • Another object of the present invention is to provide a boundary marker or the like having light-reflecting portions thereon the reflectivity of which is not impaired by repeated impact or roll-over by various elements of vehicles passing thereover.
  • FIG. 1 is an elevation view of the apparatus of the present invention in its normal upstanding position
  • FIG. 2 is an elevation view similar to FIG. 1 but in partial vertical section
  • FIG. 3 is an enlarged partial vertical section of a portion of the apparatus as seen in FIG. 2, and
  • FIG. 4 is an elevation view of the apparatus of FIG. 1 shown deflected from the position of FIG. 1.
  • FIG. 1 shows the apparatus of the present invention in its normal upstanding position and comprising an elongate hollow cylindrical pole member 10 having first and second end caps 12 and 14, respectively, which serve to close the respective ends of the cylindrical pole member 10.
  • a substantially rigid rod member 16 is positioned within the cylindrical pole member 10 and is connected at its opposite ends to the respective end caps 12 and 14 in a manner that will be described in further detail in connection with the later figures of the drawings.
  • a base member 18 is adapted to be attached to a fixed support surface 20, which may be the pavement surface of a roadway or the like, the ground itself or any other fixed support surface to which a boundary marker is to be attached.
  • a substantially solid unitary flexible support member 22 Interconnecting the base member 18 and the first end cap 12 of the cylindrical pole member 10 is a substantially solid unitary flexible support member 22, which may be of rubber or the like.
  • the support member 22 is adapted to flex when the cylindrical pole member 10 is subjected to impact forces, enabling the entire cylindrical pole member 10 to be deflected through substantially ninety degrees, as shown in FIG. 4. As seen in that figure, the cylindrical pole member 10 remains substantially rigid, and the flexing of the entire assembly is made possible by the resilience of the flexible support member 22.
  • the overall configuration of the support member 22 is generally cylindrical, including first and second circular end faces 24 and 26, respectively, and a surface of revolution 28 therebetween, as may be seen in FIG. 2.
  • the surface of revolution 28 is concave
  • the flexible support member 22 is, accordingly, of generally hour-glass configuration.
  • the boundary marker of the present invention is utilized in ambient conditions of relatively high wind velocity, it is sometimes desirable to employ a support member 22 of overall cylindrical configuration in which the surface of revolution 28 is a cylindrical surface having linear lengthwise elements, as opposed to the concave surface of revolution 28 shown in the drawings herein.
  • the fully cylindrical configuration of the support member 22 provides an additional element of stiffness resisting deflection of the pole member 10, thus providing better performance in a windy setting.
  • a reflective member such as reflective tape or the like
  • the boundary markers of the prior art were rendered more visible at night, since the reflective member would reflect the light of vehicle headlamps and render the boundary marker more visible to an approaching vehicle.
  • the reflective members of the markers or delineators of the prior art were positioned at the external surface of the device, one common method of providing the reflective surface being simply the addition of reflective tape to the external surface of the upstanding pole.
  • such tapes and other external reflective surface members suffer considerable wear and actual destruction upon repeated impact by passing vehicles, thus seriously impairing the visibility of the prior art devices.
  • the light-reflecting member 30 is positioned just inside the hollow cylindrical pole member 10, the latter being substantially transparent to light rays and preferably comprising a polycarbonate tube.
  • the outer reflective surface of the light-reflecting member 30 receives and reflects light through the polycarbonate pole member 10 but is protected from scuffing, scraping and actual removal by virtue of the protective casing comprising the polycarbonate pole member itself.
  • the centrally located substantially rigid rod member 16 is threaded at its respective extremities 32 and 34, these threaded extremities being received in threaded apertures in the respective end caps 12 and 14.
  • the axial length of threaded engagement is somewhat less than the penetration of the extremity of the rod member into the cooperating aperture in the respective end cap.
  • the threaded portion of the rod extremity does not extend from the tip of the rod to the internal face of the end cap, and the rod member 16 is, accordingly, stronger at the point of egress from the end cap, where resistance to flexing is needed.
  • the structural integrity of the apparatus at this point is enhanced by ensuring that the portion of the end cap just outboard of the rod extremity is of a dimension substantially equal to the diameter of the rod. That is to say, the thickness of end cap 14 above the upper extremity 34 of rod 16 is substantially equal to the diameter of the rod, and the transverse web of the end cap 12 just below the lower extremity 32 of rod 16 is, likewise, of a dimension (axially) substantially equal to the diameter of the rod 16.
  • a threaded connector member 36 and an associated disc or washer 38 is suitable adhered, as by an epoxy adhesive or the like, to the upper circular face 24 of the support member 22.
  • a threaded connector member 40 and an associated washer 42 are affixed to the lower circular face 26 of the support member 22.
  • the ability of the road marker of the present invention to withstand extreme crushing forces such as can be applied by a tire 46 of a passing vehicle depends in part upon the fact that the respective end caps 12 and 14 extend a distance into the respective end of the hollow cylindrical pole member 10; obviously, transverse or radial strength is provided at each ends by this construction.
  • the ability to withstand crushing radial forces is derived from the fact that the hollow cylindrical pole member 10 is filled with a solidified from 48, indicated most clearly in FIG. 3.
  • the solid foam 48 is contained within a thin plastic bag 50 which extends substantially the entire length of the hollow pole member 10 and which is just inside the light-reflecting member 30 which, in turn, is just inside the hollow polycarbonate tube constituting the pole member 10.
  • the solidified foam fill 48 is preferably of a density of substantially 6 pounds per cubic foot, and with this foam fill experimental models of the boundary marker in accordance with the teachings of the present invention have withstood 9,000 pounds pressure per square inch intermediate the ends thereof without being crushed or exhibiting any structural damage.
  • the bottom end cap 12 is positioned in place as seen in FIG. 2, with the rod 16 in threaded engagement with the end cap 12 and, accordingly, being centrally located within the hollow cylindrical member 10.
  • the thin plastic bag 50 is positioned adjacent the inside surface of the light-reflecting member 30, and the foam in liquid form is introduced into the interior of the bag.
  • a transverse disc member 52 of cardboard or the like may be positioned as shown in FIG. 3, the central aperture 54 therein fitting around the upper end of the central rod 16 to position the latter and hold it in place while the upper end cap 14, which may be serrated to aid assembly, is threaded onto the upper end of the rod 16 to close the assembly.
  • a small elongate weep hole 56 is provided in the end cap 14, and as the liquid foam cures, it expands to fill the void within the cylindrical pole member 10 and, the proper amount of liquid foam having been introduced, expands up into the weep hole 56 and seals the same upon solidifying.
  • the purpose of the weep hole 56 is to permit the air in the interior of the hollow member 10 to escape as the foam expands and solidifies.
  • the bottom face 26 of the flexible support member 22 is, in use, very close to the fixed support surface 20.
  • the entire assembly lies very close to the fixed support surface 20 and is supported thereby and by the upper face of the base member 18.
  • the low profile of the entire assembly in fact, when in the position shown in FIG. 4 is emphasized by the fact that an edge portion of the upper face 24 of the support member 22 is substantially contiguous with a corresponding edge portion of the lower face 26 thereof.
  • the invention has been described above in considerable detail, and with particular reference to its application to the field of road markers and the like. However, it will be obvious to those skilled in the art that the apparatus of the present invention will find utility in other analogous applications, and, further, variations in the structural details described above may be made within the teaching of the invention.
  • the light-reflecting member 30 may comprise areas of different reflectivity, as indicated generally in FIG. 2 herein, to provide any desired design.
  • the invention is not to be considered as being limited to the particular details given, nor to the specific application to which reference has been made during the description of the apparatus, except insofar as may be required by the scope of the appended claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Signs Or Road Markings (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
US05/654,161 1975-03-20 1976-02-02 Boundary marker Expired - Lifetime US4004545A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US05/654,161 US4004545A (en) 1975-03-20 1976-02-02 Boundary marker
CA247,649A CA1036312A (en) 1975-03-20 1976-03-11 Boundary marker
DK116176A DK116176A (da) 1975-03-20 1976-03-17 Bojelig vejkantmarkeringsstav
NL7602863A NL7602863A (nl) 1975-03-20 1976-03-18 Grenslijnbaken.
DE19762611465 DE2611465A1 (de) 1975-03-20 1976-03-18 Markierungspfahl, insbesondere zur aufstellung an strassenraendern
FR7608005A FR2304722A1 (fr) 1975-03-20 1976-03-19 Borne de signalisation flexible sous impact
GB11480/76A GB1549271A (en) 1975-03-20 1976-03-22 Deflecttable road boundary marker
IT7667675A IT1057777B (it) 1975-03-20 1976-03-22 Segnale di delimitazione destina to ad essere montato lungo le strade

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US56018775A 1975-03-20 1975-03-20
US05/654,161 US4004545A (en) 1975-03-20 1976-02-02 Boundary marker

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US56018775A Continuation-In-Part 1975-03-20 1975-03-20

Publications (1)

Publication Number Publication Date
US4004545A true US4004545A (en) 1977-01-25

Family

ID=27072274

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/654,161 Expired - Lifetime US4004545A (en) 1975-03-20 1976-02-02 Boundary marker

Country Status (8)

Country Link
US (1) US4004545A (da)
CA (1) CA1036312A (da)
DE (1) DE2611465A1 (da)
DK (1) DK116176A (da)
FR (1) FR2304722A1 (da)
GB (1) GB1549271A (da)
IT (1) IT1057777B (da)
NL (1) NL7602863A (da)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4245922A (en) * 1979-04-02 1981-01-20 Auriemma Robert S Traffic delineator post
US4621940A (en) * 1984-09-20 1986-11-11 Mobay Chemical Corporation Stiff but bendable elongated plastic article
US4782783A (en) * 1986-02-13 1988-11-08 Kulp Jack H Traffic channelizer mountable vertical panel
US4859983A (en) * 1985-10-24 1989-08-22 Signal, Inc. Plastic barricade
US5670954A (en) * 1995-02-24 1997-09-23 Junker; Wilhelm Pedestal mounted traffic beacon
US20040264010A1 (en) * 2003-06-20 2004-12-30 Yuan-Chun Mao Light reflector for personal items
FR2859227A1 (fr) * 2003-08-25 2005-03-04 Air Eco Concept Dispositif de protection contre les chocs mecaniques
US20090279951A1 (en) * 2008-05-12 2009-11-12 Wheeler Jr Dale Owen Surface mount traffic channelizer
US20100143034A1 (en) * 2008-12-09 2010-06-10 Arra David Yeghiayan Method and Apparatus for a Roadway Marker
US20100254761A1 (en) * 2008-05-12 2010-10-07 Wheeler Jr Dale Owen Surface mount traffic channelizer
US20160040374A1 (en) * 2013-03-08 2016-02-11 Kotrass Co., Ltd. Delineator post having restoration function
WO2020153851A1 (en) * 2019-01-22 2020-07-30 Norfax As Protective pliable bollard
US11767649B1 (en) 2020-01-17 2023-09-26 Flexstake, Inc. Flexible traffic control marker

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4462711A (en) * 1981-05-26 1984-07-31 Garner J Harlan Reflective road marker
US4511281A (en) * 1981-10-14 1985-04-16 Carsonite International Corporation Road-surface mountable delineator support member
US4534673A (en) * 1983-04-11 1985-08-13 Minnesota Mining And Manufacturing Company Elastomeric pavement marker
AT384844B (de) * 1983-12-19 1988-01-11 Kraiburg Gummi Allseitig kippbare, sich selbsttaetig wieder aufrichtende standsaeule eines strassenleitpfostens
FR2585743B2 (fr) * 1985-08-01 1989-06-16 Aguera Christian Piquets tubulaires articules pour le balisage des pistes de skis, de terrains de sport ou autres.
FR2580688B1 (fr) * 1985-04-22 1989-06-09 Aguera Christian Piquet tubulaire articule pour le balisage des pistes de ski, de terrains de sport ou autres
EP0200659A1 (fr) * 1985-04-22 1986-11-05 Christian Aguera Piquet tubulaire articulé pour le balisage des pistes de ski, de terrains de sport ou autres
US4862823A (en) * 1988-05-05 1989-09-05 Flexstake, Inc. Bendable marker and method of marking
DE3912064A1 (de) * 1989-04-13 1990-10-18 Cronenberg Ohg J Pfosten fuer strassen und gehwege
FR2654449B1 (fr) * 1989-11-13 1992-04-30 Masurel Odile Barriere escamotable notamment, pour reservation de parking.
FR2655511B1 (fr) * 1989-12-11 1992-04-03 Rousseau Sa Procede d'entretien des dependances routieres; delineateurs et faucheuse pour la mise en óoeuvre dudit procede.
US5205236A (en) * 1991-07-26 1993-04-27 Flexstake, Inc. Stiffener core for a highway marker
DE9312881U1 (de) * 1993-08-27 1993-11-11 Krone-Mühlen- und Gerätebau Wolfgang Schuchardt, 58285 Gevelsberg Stützstange zum Abstützen von Tarnnetzen
GB2314108A (en) * 1996-06-12 1997-12-17 Pearce Gowshall Ltd Traffic bollards
EP2905381A1 (de) * 2014-02-06 2015-08-12 Conradi + Kaiser GmbH Sperrpfosten

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE642468A (da) *
US470873A (en) * 1892-03-15 William a
US2625760A (en) * 1949-06-27 1953-01-20 Lyle M Cleal Garden marker
US3279133A (en) * 1964-08-18 1966-10-18 Korte John F De Boundary marker
FR1482473A (fr) * 1966-06-04 1967-05-26 Poteau de délimitation, signalisation ou destination analogue et plus spécialement pour terrains de sports
US3478714A (en) * 1968-08-05 1969-11-18 Borg Warner Signal device
US3566000A (en) * 1969-06-20 1971-02-23 Allegheny Ludlum Steel Grounding rod
US3740881A (en) * 1971-06-16 1973-06-26 Display Corp Int Placard holding display assembly
US3851616A (en) * 1973-09-04 1974-12-03 W Brown Portable traffic marker
US3874103A (en) * 1973-05-21 1975-04-01 Ted J Muta Display device

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1402465A (en) * 1920-09-22 1922-01-03 George A Wood Traffic post
DE684153C (de) * 1937-02-20 1939-11-23 Getefo Ges Fuer Tech Fortschri Einrichtung zum nachgiebigen Halten von Staeben, insbesondere fuer Markierungszwecke
US2779240A (en) * 1953-05-06 1957-01-29 James W Gaydos Reflective marker
FR1382428A (fr) * 1964-01-14 1964-12-18 Wilhelm Elbracht & Co K G Perfectionnements apportés aux poteaux de signalisation élastiques
CH411970A (de) * 1964-04-23 1966-04-30 Raess & Co Strassenpfahl
DE1534498A1 (de) * 1965-05-21 1970-12-17 Gubela Kg Strassenleitpfosten aus Kunststoff
DE1534501A1 (de) * 1966-03-30 1970-06-25 Reinhard Giesen Strassenleitpfosten aus Kunststoff
DE1534505B2 (de) * 1966-11-12 1974-01-31 Fa. Hans Gubela, 5000 Koeln Leiteinrichtung mit Reflektoren und Verfahren zu deren Herstellung
US3438311A (en) * 1967-06-14 1969-04-15 Continental Rubber Works Highway marker
DE1778437A1 (de) * 1968-04-29 1971-10-28 Manfred Wolf Verfahren zur Herstellung von Kunststoffpfaehlen und Kunststoffrohren
BE759111A (da) * 1969-11-18 1971-04-30 Arbed
US3860213A (en) * 1970-02-06 1975-01-14 Amerace Esna Corp One-piece support
AT319994B (de) * 1971-06-09 1975-01-27 Franz Forster Fa Ing Straßenleitpflock

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE642468A (da) *
US470873A (en) * 1892-03-15 William a
US2625760A (en) * 1949-06-27 1953-01-20 Lyle M Cleal Garden marker
US3279133A (en) * 1964-08-18 1966-10-18 Korte John F De Boundary marker
FR1482473A (fr) * 1966-06-04 1967-05-26 Poteau de délimitation, signalisation ou destination analogue et plus spécialement pour terrains de sports
US3478714A (en) * 1968-08-05 1969-11-18 Borg Warner Signal device
US3566000A (en) * 1969-06-20 1971-02-23 Allegheny Ludlum Steel Grounding rod
US3740881A (en) * 1971-06-16 1973-06-26 Display Corp Int Placard holding display assembly
US3874103A (en) * 1973-05-21 1975-04-01 Ted J Muta Display device
US3851616A (en) * 1973-09-04 1974-12-03 W Brown Portable traffic marker

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
The Encyclopedia of Chemistry, Hamdel et al., 1973, pp. 876-878. *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4245922A (en) * 1979-04-02 1981-01-20 Auriemma Robert S Traffic delineator post
US4621940A (en) * 1984-09-20 1986-11-11 Mobay Chemical Corporation Stiff but bendable elongated plastic article
US4859983A (en) * 1985-10-24 1989-08-22 Signal, Inc. Plastic barricade
US4782783A (en) * 1986-02-13 1988-11-08 Kulp Jack H Traffic channelizer mountable vertical panel
US5670954A (en) * 1995-02-24 1997-09-23 Junker; Wilhelm Pedestal mounted traffic beacon
US20040264010A1 (en) * 2003-06-20 2004-12-30 Yuan-Chun Mao Light reflector for personal items
FR2859227A1 (fr) * 2003-08-25 2005-03-04 Air Eco Concept Dispositif de protection contre les chocs mecaniques
US20090279951A1 (en) * 2008-05-12 2009-11-12 Wheeler Jr Dale Owen Surface mount traffic channelizer
US20100254761A1 (en) * 2008-05-12 2010-10-07 Wheeler Jr Dale Owen Surface mount traffic channelizer
US20100143034A1 (en) * 2008-12-09 2010-06-10 Arra David Yeghiayan Method and Apparatus for a Roadway Marker
US20160040374A1 (en) * 2013-03-08 2016-02-11 Kotrass Co., Ltd. Delineator post having restoration function
US9580877B2 (en) * 2013-03-08 2017-02-28 Kotrass Co., Ltd. Delineator post having restoration function
WO2020153851A1 (en) * 2019-01-22 2020-07-30 Norfax As Protective pliable bollard
US11767649B1 (en) 2020-01-17 2023-09-26 Flexstake, Inc. Flexible traffic control marker

Also Published As

Publication number Publication date
FR2304722A1 (fr) 1976-10-15
DK116176A (da) 1976-09-21
IT1057777B (it) 1982-03-30
DE2611465A1 (de) 1976-10-07
NL7602863A (nl) 1976-09-22
CA1036312A (en) 1978-08-15
GB1549271A (en) 1979-08-01

Similar Documents

Publication Publication Date Title
US4004545A (en) Boundary marker
US4249832A (en) Highway median delineator
US4571118A (en) Simulated tubular highway safety device
US4498733A (en) Reflector structure
US3879148A (en) Grazing light reflector for roadway pavement markers
JP2695924B2 (ja) 逆反射性の舗装道路マーカー
US5273371A (en) Signalling post
US4332437A (en) Retroreflective marking tape
US6113307A (en) Highway delineator
US11466414B2 (en) Traffic control marker including a reinforcing member
US3851615A (en) Road marker
KR20120096577A (ko) 코어／쉘 구성을 구비한 시선유도표지
SE434443B (sv) Prefabricerat vegbanemarkerande bandmaterial
CA1295832C (en) Marker for concrete barriers
US4234264A (en) Multi-directional marking device of the type to be used on pavement surfaces
US3085546A (en) Traffic sign
US3924958A (en) Highway retroreflecting marker
US4136990A (en) Highway marker
US11619015B2 (en) Reflective traffic control marker
US5662430A (en) Universal ground marker
CN210420920U (zh) 一种道路安全用防撞公路指示牌
GB2069032A (en) Guide marker devices
JP2912586B2 (ja) 道路標識柱の反射標識装置
JP2019085809A (ja) 道路標識柱用緩衝材
KR101983602B1 (ko) 풍하중에 의한 표지판 각도 변경 조절장치